/*
 *  This sketch sends a temperature data from a BMP180 temp sensor to a raspberry pi running influxdb/grafana
 *
 */

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiUdp.h>
#include <SFE_BMP180.h>
#include <Wire.h>

ESP8266WiFiMulti WiFiMulti;

SFE_BMP180 pressure;

void setup() {
    Serial.begin(115200);
    delay(10);
    if (pressure.begin())
    Serial.println("BMP180 init success");
    else
    {
      Serial.println("BMP180 init fail. Check cables.\n\n");
      while(1); // Pause forever.
    }


    WiFiMulti.addAP("SSID****", "Password***");

    Serial.println();
    Serial.println();
    Serial.print("Wait for WiFi... ");

    while(WiFiMulti.run() != WL_CONNECTED) {
        Serial.print(".");
        delay(500);
    }

    Serial.println("");
    Serial.println("WiFi connected");
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());


    delay(500);
}


void loop() {

    delay(5000);
    const uint16_t port = 8888;
    const char * host = "192.168.1.33"; // IP for influxdb
    char status;
    double T;


    Serial.print("connecting to ");
    Serial.println(host);

    // Use WiFiClient class to create TCP connections
   WiFiUDP udp;


  status = pressure.startTemperature();
  if (status != 0)
  {
    // Wait for the measurement to complete:
    delay(status);

    // Retrieve the completed temperature measurement:
    // Note that the measurement is stored in the variable T.
    // Function returns 1 if successful, 0 if failure.

    status = pressure.getTemperature(T);
  }


    String line;

    // Edit below line to set device ID
    line = String("temperature,device=downstairs value=" + String(T));


    udp.beginPacket(host,port);
    udp.print(line);
    udp.endPacket();

    Serial.println("closing connection");
    udp.stop();

    Serial.println("wait 8 min...");
    delay(500000);
}